Why Output Tokens Cost More Than Input Tokens — A Hardware Drill-Down
Every AI provider charges you separately for input and output tokens, and output is the expensive half — four to eight times the input rate (Anthropic prices …
Blog
MCP + RAG: Semantic Code Search Over Your GitHub Repos
This blog post explains the RAG (retrieval-augmented generation) pipeline behind semcode, an MCP server that does semantic code search across your GitHub …
LLM Parameters: Temperature & Top-P
When working with Large Language Models via API, understanding the temperature and top-p parameters is essential for transforming basic text generation into …
Contextual Retrieval
In previous posts, we have discussed the RAG systems and how they work. We have also discussed the problem of lost context in embedded documents.
RAG Reranking
RAG re-ranking is the process of re-ordering retrieved documents using a more accurate relevance model so the LLM sees the best possible context. Let’s break it …
Embeddings
Definition: Embeddings are vectors that represent semantic meaning in a multi-dimensional space.
RAG (Retrieval Augmented Generation)
RAG (Retrieval-Augmented Generation) is a technique that addresses the limitation of LLMs not having domain-specific or up-to-date knowledge by augmenting the …
Integrating Passkeys with Spring Authorization Server, Spring Cloud Gateway, and React
Passkeys are a modern replacement for passwords that offer a safer and easier login experience. You authenticate using the same biometrics or PIN you use to …
Securing Your Web Apps: Spring Security OAuth 2.0 + BFF Pattern
In this blog post I will give you an example of how to implement OAuth 2.0 backend including BFF (Backend For Frontend) for browser-based applications using …
Six Degrees of Separation Theory
Have you ever heard about Six Degrees of Separation theory? This theory states that you’re at most six degrees away from anyone on the planet Earth, all these …
Authorization Code Flow for Confidential Clients with BFF
Let’s explore how Authorization Code Flow works for Confidential client using BFF (Backend For Frontend).
Authorization Code Flow (PKCE) for Public Clients
Let’s explore how Authorization Code Flow with PKCE (Proof Key For Code Exchange) extension works in OAuth 2.0.
OAuth 2.0 Core Concepts
Resource Owner – The user who owns the data and grants access.
Creating types for process.env with Zod
In this blog post, we will explore how to use Zod, a powerful TypeScript-first schema validation library, to create globally defined TypeScript types for …
Optimize Your Git Commit History with git --fixup
In this blog post, I’ll introduce git –fixup, a valuable feature that aids in maintaining a clean commit history for your project. Whether you’re junior …
Understanding gRPC - With example project
So what is gRPC? It’s an open-source remote procedure call framework created by Google. Let’s break it down a bit more to see what is RPC.
Protocol Buffers
We all know what is JSON, YAML, XML right? Protocol Buffers are similar, but smaller, faster, and one can say they are even simpler. Let’s try to understand …
Clean your node_modules
node_modules can be huge, I’m pretty sure you experienced that. If you have a lot of JavaScript projects on your machine that are just sitting there and you are …
Deep clone with structured clone
If you are Javascript developer you probably had a chance to do deep cloning. If you were doing it before April 2022 you most likely had to do workarounds or …
React - performance tip
Have you ever done something like this in your ReactJS code?
Git - What changed
You know that feeling when you come back from vacation, and you want to know what has been done in the days while you were not there, but you’re too lazy to go …
Vim 003 - Jump like a kangaroo - 0.2
You want to jump like a kangaroo? Let’s learn horizontal jumping :).
Amend your commit
If you’re developer I’m pretty sure that by working with git every day it happened that you committed some changes and then you realized that you made a typo in …
Vim 002 - Jump like a kangaroo - 0.1
You want to jump like a kangaroo? So, let’s start with vertical jumping :).
Vim 001 - Exit like a millionaire
If you are here you most likely have a problem with exiting Vim?. So let’s fix that.
Explain shell
Have you ever stumbled on command that does the thing that you want, but you don’t have a slightest clue how it works and what those arguments mean in that …
Lobotomized owl selector
Have you even heard about Lobotomized owl selector in CSS? If not this is how it looks like.
You will witness Js F*ck
Copy this code and run it in your console.
Update your dependencies like a boss
If you’re Web developer you’ve probably been in the position where you have to update outdated dependencies from your package.json. You could run